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gnitrh gtst-t5 @anni @fitta` "JOHN TUNNIOLIFF AND PATRICK CAHILL, OFNORTHAMPTON, MASSACHUSTTS, `ASSIGN- ORS TO A. P. CRITCHLOW, OF SAMEPLACE i Letters Patent No. 71,429, dated November 26, 1867.

MACHINE FOR ORNAMBNTING BUTTONSr titi Stlgebule trama tu in tipa Estimataient mit mating tart nf it tima. Y t

To ALL WHQMIT MAY conocen;

.Be it known that we, JOHN TUNNICLIPF and PATRICK CnniLL, of Northam`and State of Massachusetts, have invented a new and improved Machinefor Ornamenting Buttons, and that the following description, taken inconnection with the accompanying drawings, ereinafter referred to, formsafull and exact specification of the same, l ture and 4principles of`our said, improvements, by which our invention may bc distinguished fromall others of a similar class,rtogether with i such parts as we claim,and desire to have se This invention relates 'to a new and imp pton,inthe county of Hampshire,

cured to us by Letters Patent, rovcdjmachine for c'uttin i ent buttonsin this style in an economical and expeditious manner.,` In theaccompanying sheet of drawingsl Figure 1 is a plan or top view of ourinvention. Figure 2, a longitudinal vertical section-of the same, Figure3, a transverse vertical section of the same, Figure 4, `a side view ofa portion of the same. Figures 5 and 6, detached face views of buttonsornamented b Similarletters of reference indicate like parts. Arepresents the bed-platc of our machine, which is a kind of lathe,manently to the bed-plate. The head B is provided with a sliding bar, D,operated bya screw, E,`and arranged substantially as the slidingcentre-point bar of an ordinaryturning-lathe, as will be clearly seen byreferring i `to iig. 2. Ini the inner end of this bar D the cutter F issecured, which is simply a point, a, formedjon the end of a steel plate,b, as shown in figs. 1 and 2. In the other head, C, a rotary mandrel, G,is fttedphavinga chuck, H, on its inner end, in which the buttons I tobc ornamented are secured while `being cut or operated upon. This chuckmay be of wood, of conical form, and hollow, and slittcd longitudinally,a circular recess t being'madc in its end to receive the buttons, andthe latter clamped by means of a. collar, A*, fitted on the chuck, andmoved by a lever, B*, as will be fully understood by referring toiig. 1. The rotary mandrel G` hasV its bearings, J J,'tted in slots. cin the head Q, so that a requisite degree of play or movement is allowedthem,Y (see fig. 1,) and a. spiral spring, d, is made to bear againstthe rear bearing J', which has a tendencyito press it in thedirectionindicated by the arrow 1, (sec fig. 1.) The front bearing J isretained,when`it is not` desiredto have it moved, by a screw, e. On therear part of thc mandrel G there are two squares, KK, placed in such arelative position with cach other that the angles of,r one square willbe' opposite the centres `of' thc sides of the other square, as shown infigs. 1 and 2. L represents a sliding bar, fitted at the front side ofthe head \C,"andhaving an arm, e', fitted transversely in its outer end,in which a roller,f, is placed,` against which thesquares` K,K"arealternately pressed by the spring d, the rollerf being moved in linewith one square, and, then with.` 1 the' other, by adjusting the slidingbar L. From the above `cllescripticn, it will be seen that whenA themandrel G is rotated, itwill have a-vibrating movement given it by oneof the squares, sayK, and the spring al and the` have aV sinuousgroovecut in itsz i face, and by moving the bar L so that the roller fwill be brought in line with thc other square K', another i sinuousgroove will be cut eccentric with t he first one, but crossing it atpoints in such a manner as to resemble Q a circular chain with connectedlinks, (see tig. 5.) In iig. 6 a, modiiication ot` ,this ornament isshown,which is effected by adjusting or moving the front bearing J' ofthe mandrel G, after one of' thegrooveslhas beencut in p the button, asfollows: On the inner side of the head C there is secured by a pivot,g,acm-vcd lever, having d aniadjustable upright arm, N, in its outer end,Awith a roller, It, in its upper end. This arm M, when this latter`ornamentation is to he made, `is adjusted suiicientlyhigh to cause theroller li to bc acted upon` by a bevelled notch, inthe sliding bar L,when the latteris moved to bring therollerf in arm e in contact with theouter l square K on the rotary` mandrel, and the lever M, by the actionof' the sliding bar L on the roller `felis moved so that its Y indicatedby-arrow 2, (sec fig. 3,) the set-scrcw`e Y ustment of the front bearingJ, the larger sinuous 1 taken in the line a: x, g. 1. taken in the lineyy, g. 1.

y our invention. Y

and B C are two heads,l attached pergroove is out, when the mandrel isadjusted out of line with the cutter-bar D, and the smller groove eutwhen said mandrel is nearer in line with hit.

By this simple nia-chine, buttons of the kind speeied may be ornornentedvery expeditiously, rmd at a. small cest.` f v Having thusI describedour invention, we claim as new, und desire to secure by LettersPatent-'- 1. The rotary mandrel G,tted in movable bearings J J, andprovided with squzires K K', in combination with the adjustableroller-f, connected `with a sliding bnr L on the head C, n.11 arrangedto opera-te imconnection with the cutter F, substantially in the manneras and for the purpose set forth.

' 2. The lever M, provided with the adjustable roller-arm N, incombination with the bevelled notch z' in the sliding bar L, and themandrel G, fitted in movable bearings J JN', substantially as :indforthe purpose specified.

JOHN TUNNICLIFF, PATRICK CAI'IILL.

Witnesses:

C. L. JonNsoN, L. DoLAN.

